I'm developing a social app and have some problems with populating objects from parse created in a selected cell.
The Home screen is a UITableViewController, populates an array of objects stored in Parse, when a user taps a cell, a new scene DetailViewController will be pushed, which shows the object from the selected cell in a view.
Next, I created in DetailViewController a UIButton to add objects to a new class called "replies" and also have added into the DetailViewController scene, a TableView which is populated using a new array from those objects at the "replies" class.
I want to retrieve just the objects created on the selected cell :( At the moment everything works fine except on the DetailViewController scene the TableView will show all the objects created in the "replies" class no matter on which cell I tap.
I wonder how would I store an array from the selected cell so I can populate the objects that have been created at that selected cell... I believe that I could solve this issue with relational queries from parse at the retrieve from parse method.
Would Appreciate Very Much Any Help.
.h file
#import <UIKit/UIKit.h>
#import <Parse/Parse.h>
#import <ParseUI/ParseUI.h>
#import "GroundTableViewCell.h"
#import "TimelineTableViewController.h"
@interface DetailViewController : UIViewController<
UITableViewDataSource,
UITableViewDelegate,
NSObject>
{
}
@property (strong, nonatomic) IBOutlet UITableView *detailTableView;
@property (strong, nonatomic) IBOutlet UITextView *TextField;
@property (nonatomic, strong) PFObject *groUnds;
@property (strong, nonatomic) IBOutlet UITextView *replyTextView;
- (IBAction)sendReply:(id)sender;
@end
.m file
#import "DetailViewController.h"
#import <Parse/Parse.h>
#import "GroundTableViewCell.h"
#import "TimelineTableViewController.h"
@interface DetailViewController ()
@property(strong)NSMutableArray* repliesMutableArray;
@end
@implementation DetailViewController
@synthesize groUnds;
@synthesize TextField;
@synthesize detailTableView;
@synthesize repliesMutableArray;
- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil
{
self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
if (self) {
// Custom initialization
}
return self;
}
- (void)viewDidLoad {
[super viewDidLoad];
PFUser *currentUser = [PFUser currentUser];
if (currentUser) {
// do stuff with the user
} else {
// show the signup or login screen
}
// Do any additional setup after loading the view.
// [self performSelector:@selector(retrieveFromParse)];
// repliesArray = [[NSArray alloc] initWithObjects:@"comment", nil];
[self performSelector:@selector(retrieveFromParse)];
// Set the Label text with the selected detail.
self.TextField.text = [self.groUnds objectForKey:@"comment"];
}
- (void) retrieveFromParse {
PFQuery *retrieveReplies = [PFQuery queryWithClassName:@"Replies"];
// This is the part where im not really sure how to query...
// if uncommented won't show any objects at all now shows all the objects from the "Replies class" -->
// [retrieveReplies whereKey:@"comment" equalTo:groUnds];
[retrieveReplies orderByDescending:@"createdAt"];
[retrieveReplies findObjectsInBackgroundWithBlock:^(NSArray *objects, NSError *error) {
if (!error) {
repliesMutableArray = [[NSMutableArray alloc] initWithArray:objects];
}
[detailTableView reloadData];
}];
}
//*********************Setup table of folder names ************************
//get number of sections in tableview
- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView {
// Return the number of sections.
return 1;
}
//get number of rows by counting number of folders
-(NSInteger) tableView:(UITableView *)tableView numberOfRowsInSection:(NSInteger)section{
return [repliesMutableArray count ];
}
//setup cells in tableView
- (UITableViewCell *)tableView:(UITableView *)tableView cellForRowAtIndexPath:(NSIndexPath *)indexPath {
static NSString *CellIdentifier = @"replyCell";
GroundTableViewCell *cell = [tableView dequeueReusableCellWithIdentifier:CellIdentifier forIndexPath:indexPath];
PFObject *tempObject = [repliesMutableArray objectAtIndex:indexPath.row];
cell.cellTitle.text = [tempObject objectForKey:@"commentReplies"];
return cell;
}
- (void)didReceiveMemoryWarning {
[super didReceiveMemoryWarning];
// Dispose of any resources that can be recreated.
}
//reply button
- (IBAction)sendReply:(id)sender {
//1
//Add the image to the object, and add the comment and the user
PFObject *Reply = [PFObject objectWithClassName:@"Replies"];
[Reply setObject:[PFUser currentUser].username forKey:@"user"];
[Reply setObject:self.replyTextView.text forKey:@"commentReplies"];
//2
[Reply saveInBackgroundWithBlock:^(BOOL succeeded, NSError *error) {
//3
if (succeeded){
//Go back to the wall
[self.navigationController popViewControllerAnimated:YES];
}
else{
NSString *errorString = [[error userInfo] objectForKey:@"error"];
UIAlertView *errorAlertView = [[UIAlertView alloc] initWithTitle:@"Error" message:errorString delegate:nil cancelButtonTitle:@"Ok" otherButtonTitles:nil, nil];
[errorAlertView show];
}
}];
}
@end
